ViewsJsonField.php in Views Json Source 1.x

Namespace

Drupal\views_json_source\Plugin\views\field

File

src/Plugin/views/field/ViewsJsonField.php

<?php

namespace Drupal\views_json_source\Plugin\views\field;

use Drupal\views\Plugin\views\field\FieldPluginBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\views\ResultRow;
use Drupal\Component\Utility\Html;

/**
 * Base field handler for views_json_source.
 *
 * @ViewsField("views_json_source_field")
 */
class ViewsJsonField extends FieldPluginBase {

  /**
   * Render.
   */
  public function render(ResultRow $values) {
    $key = $this->field_alias;
    if (!isset($values->{$key})) {
      return '';
    }
    $values = $values->{$key};
    return $this
      ->renderField($values);
  }

  /**
   * Renders field.
   */
  public function renderField($value) {
    return Html::escape($value);
  }

  /**
   * Option definition.
   */
  protected function defineOptions() {
    $options = parent::defineOptions();
    $options['key'] = [
      'default' => '',
    ];
    return $options;
  }

  /**
   * Options form.
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    parent::buildOptionsForm($form, $form_state);
    $form['key'] = [
      '#title' => $this
        ->t('Key Chooser'),
      '#description' => $this
        ->t('choose a key'),
      '#type' => 'textfield',
      '#default_value' => $this->options['key'],
      '#required' => TRUE,
    ];
  }

  /**
   * Called to add the field to a query.
   */
  public function query() {

    // Add the field.
    $this->table_alias = 'json';
    $this->field_alias = $this->query
      ->addField($this->table_alias, $this->options['key'], '', $this->options);
  }

  /**
   * Called to determine what to tell the clicksorter.
   */
  public function clickSort($order) {
    if (isset($this->field_alias)) {
      $this->query
        ->addOrderBy(NULL, $this->field_alias, $order);
    }
  }

}

Classes

Name	Description
ViewsJsonField	Base field handler for views_json_source.